我有这样的tsconfig.json:
{
"compilerOptions": {
"lib": ["es2017", "dom"],
"module": "umd",
"outDir": "dist",
"target": "es5",
"declaration": true
},
"compileOnSave": true,
"files": [
"myClass.ts"
"demo.ts"
]
}
我的打字稿,demo.ts
:
import { MyClass } from './myClass';
(() => {
console.log('fired IIFE');
document.onreadystatechange = function () {
if (document.readyState === 'interactive') {
console.log('hello world', MyClass);
}
};
})();
哪个被编译为:
(function (factory) {
if (typeof module === "object" && typeof module.exports === "object") {
var v = factory(require, exports);
if (v !== undefined) module.exports = v;
}
else if (typeof define === "function" && define.amd) {
define(["require", "exports", "./myClass"], factory);
}
})(function (require, exports) {
"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
var myClass_1 = require("./myClass");
(function () {
console.log('fired IIFE');
document.onreadystatechange = function () {
if (document.readyState === 'interactive') {
console.log('hello world', myClass_1.MyClass);
}
};
})();
});
我的html:
<!DOCTYPE HTML>
<html>
<head>
<title>Test</title>
<script src="./dist/myClass.js"></script>
<script src="./dist/demo.js"></script>
</head>
<body>
<p>test</p>
</body>
</html>
我也尝试过:
<!DOCTYPE HTML>
<html>
<head>
<title>Test</title>
</head>
<body>
<p>test</p>
<script src="./dist/myClass.js"></script>
<script src="./dist/demo.js"></script>
</body>
</html>
两种方法都不会执行脚本,也不会打印任何日志语句。我在做什么错了?
答案 0 :(得分:0)
原来,您需要使用requirejs才能执行由打字稿生成的UMD模块:
<!DOCTYPE HTML>
<html>
<head>
<title>Test</title>
<script data-main="dist/demo" type="text/javascript" src="http://cdnjs.cloudflare.com/ajax/libs/require.js/2.1.1/require.min.js"></script>
</head>
<body>
<p>test</p>
</body>
</html>
这里发生的是data-main
指向加载其他内容的.js文件。您不需要单独加载类脚本,require.js会为您完成。
这让我感到惊讶,因为使用gulp-wrap-umd
软件包,它提供的包装器不会为封闭的脚本创建隔离范围,它实际上是全局的,而打字稿生成的UMD包装的脚本具有隔离范围。
在此实现中,我的引导脚本demo.js
如下所示:
(function (factory) {
if (typeof module === "object" && typeof module.exports === "object") {
var v = factory(require, exports);
if (v !== undefined) module.exports = v;
}
else if (typeof define === "function" && define.amd) {
define(["require", "exports", "./myClass"], factory);
}
})(function (require, exports) {
"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
require(["./dist/myClass"], (myClassModule) => {
console.log('my class:', myClassModule.MyClass);
});
在log语句所在的位置,您可以运行任何脚本,而无需document.onready...
或window.onload。